Tool · Weight loss
Retatrutide Weight Loss Calculator
Estimate your weight loss timeline on Retatrutide using your personal stats and Phase 2 trial data from Jastreboff et al., NEJM 2023. Individual results vary; this tool is educational, not medical advice.
Mean trial loss
24.2%
Trial duration
48 wk
Max dose
12 mg/wk
Mechanism
GIP/GLP-1/GCG
Personal stats
Inputs
Units
35 years
18 years80 years
2000 kcal
1000 kcal4000 kcal
90 kg
50 kg200 kg
75 kg
40 kg195 kg
175 cm
140 cm220 cm
Output
Results
Enter your stats above and run the calculation to see your projection.
Recommendation
Protocol
Run the calculation to get a recommended protocol.
Methodology
Sources & assumptions
- Trial reference:Jastreboff AM, et al. “Triple-Hormone-Receptor Agonist Retatrutide for Obesity.” N Engl J Med. 2023;389(6):514-526. Phase 2 trial showed 24.2% mean weight loss at 12mg over 48 weeks.
- BMR equation: Mifflin-St Jeor (10·kg + 6.25·cm − 5·age + 5/−161 for male/female).
- Weekly loss model: 0.5% body weight base rate × activity bonus + calorie deficit (7700 kcal/kg).
- Individual results vary. Educational use only — does not constitute medical advice.
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